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ÄÁÅÙÃ÷ | contents |
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½ºÅ͵ð | study |
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Pressure Drop of straight pipe |
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±Û¾´ÀÌ : ÃÖ°í°ü¸®ÀÚ °íÀ¯ID : admin
³¯Â¥ : 07-01-29 22:44
Á¶È¸ : 10165
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============================================================== Pressure Drop of straight pipe ==============================================================
¡Ý Horizontal & straight pipe (Gas, Liquid)
Darcy Formula
¡âp = (625.3 * f L W^2) / (d^5 ¥ñ)
Liquid flow¿¡ ´ëÇؼ´Â ¾ðÁ¦µçÁö Àû¿ëÀÌ °¡´ÉÇϳª, ¹è°ü³» À¯¼ÓÀº ÀûÁ¤ÇÑÁö °í·ÁÇÒ °Í. p1°ú p2ÀÇ Â÷ÀÌ°¡ 10% ÀÌÇÏÀÎ °æ¿ì Inlet & Outlet ¾î´ÀÂÊÀÇ ¥ñ»ç¿ëÇÏ¿©µµ ¹«¹æ. p1°ú p2ÀÇ Â÷ÀÌ°¡ 10~40% ÀÎ °æ¿ì Inlet & Outlet Æò±ÕÁ¶°ÇÇÏÀÇ ¥ñ»ç¿ëÇÒ °Í. p1°ú p2ÀÇ Â÷ÀÌ°¡ 40% ÀÌ»óÀÎ °æ¿ì Empirical Formula of flow½ÄÀ» »ç¿ë.
¡âp : pressure [bar_g] f : friction factor [ ] L : length [m] D : internal diameter [m] g : accleration gravity 9.8 [m/sec^2] W : flow rate [kg/hr] d : internal diameter [mm] ¥ñ : weight density [kg/m3]
* laminar flow (Re < 2,000)
¡âp = 113.2 (¥ìL W) / (d^4 ¥ñ)
¡Ý Vertical pipe (Gas Only)
¡âp = 1.293 * (Sg - 1) * H / 10200
¡âp : pressure drop [bar_g] Sg : specific gravity of gas [ ] H : Height [m]
¡Ý Vertical pipe (Liquid Only)
¡âp = (H * ¥ñ) / 10200
¡âp : pressure drop [bar_g] H : Height [m] ¥ñ : weight density [kg/m3] |
[ÀÌ °Ô½Ã¹°Àº ¿î¿µÀÚ´Ô¿¡ ÀÇÇØ 2008-03-22 00:48:37 À¯Ã¼¿ªÇп¡¼ À̵¿ µÊ]
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